晴天

1.掛載系統光盤 1.1創建掛載文件 [root@centos7?~]#?mkdir?/mnt/cdrom??????????????????????????#創建文件 1.2掛載光驅 [root@centos7?~]#?mount?/dev/cdrom?/mnt/cdrom/??????????????#掛載光驅? mount:?/dev/sr0?is?w…